FEFF10

FEFF is an automated program for ab initio multiple scattering calculations of X-ray Absorption Fine Structure (XAFS), X-ray Absorption Near-Edge Structure (XANES) and various other spectra for clusters of atoms. The code yields scattering amplitudes and phases used in many modern XAFS analysis codes, as well as various other properties.

FEFF10 includes the addition of the finite-temperature extension and is linked to CORVUS. However the JFEFF GUI is not supported in this version.

This software was prepared with support in part from the U.S. DOE, Office of Basic Energy Sciences, DMSE grants DE-FG03-97ER45623 (Dept. of Physics, U.Washington) and DE-AC02-76SF00515 (Theory Institute for Materials and Energy Spectroscopies (TIMES)) at SLAC.

In order to obtain a password to access to the code and installer it is necessary to register on the FEFF10 Registration Page. This will also enable you to receive updates, news and information on workshops.

If you’ve already registered, you can access the download area here.

Redistribution and use of this Distribution in source and binary formats, with or without modification, is permitted, provided the following conditions are met:

Redistributions must retain the above notices and the following list of conditions and disclaimer;

Modified formats carry the marking “Based on or developed using Distribution: FEFF10.0 Copyright (c) 2020 FEFF Project, University of Washington and SLAC National Accelerator Laboratory. All rights reserved.”

Recipient acknowledges the rights of the University of Washington and SLAC to prepare uses of this Distribution and its modifications that may be substantially similar or functionally equivalent to Recipient-prepared modifications.

Please cite an appropriate feff reference if the code or its results are used in published work. The main reference for calculations using the current version feff10 is:

Calculations of x-ray spectroscopies using FEFF10 and Corvus, J.J. Kas, F.D. Vila, D. Pemmaraju, Tun S. Tan, S. Vimolchalao, and J.J. Rehr, arXiv:2106.13334 [cond-mat.mtrl-sci], 2021.

Parameter-free calculations of x-ray spectra with FEFF9, J.J. Rehr, J.J. Kas, F.D. Vila, M.P. Prange, K. Jorissen, Phys. Chem. Chem. Phys., 12, 5503-5513 (2010).